What are the minimum and maximum sending volumes for dedicated IPs?

Summary

Determining appropriate sending volumes for dedicated IPs involves considering several factors, as highlighted by experts and marketers. A gradual IP warm-up is essential, starting with a few hundred or thousand emails per day and gradually increasing volume over weeks. Minimum volume recommendations vary, with suggestions ranging from 5,000 emails per month to 100,000 emails per month or 10,000 emails per week, often dependent on list quality and engagement. One expert suggests 1 million emails per month for more robust segmentation. It's generally not recommended to use a dedicated IP for volumes below 5,000 emails per week. For maximum volume, 1-2 million emails per IP per day is a common recommendation, although this can stretch to 3-4 million with multiple IPs. List composition and receiver throttling also play a role in determining maximum volume. Maintaining high engagement and good list hygiene are always paramount.

Key findings

  • IP Warm-up is Crucial: A gradual IP warm-up is universally recommended, starting with a small volume and slowly increasing over time.
  • Minimum Volume Varies: Recommended minimum sending volumes range widely, from 5,000 to 100,000 emails per month or 10,000 per week, depending on specific circumstances.
  • Maximum Volume is Limited: A common maximum sending volume is 1-2 million emails per IP per day, but this can vary.
  • Engagement is Key: High engagement (opens, clicks) and good list hygiene are crucial, regardless of sending volume.
  • Low Volume Alternatives: Shared IPs may be more suitable for senders with low volumes (under 5,000 emails per week).

Key considerations

  • List Quality: Assess list quality and engagement levels, as these factors significantly influence deliverability.
  • Consistent Sending: Maintain a consistent sending schedule to help establish a good sender reputation.
  • Monitor Metrics: Continuously monitor key metrics such as bounce rates, spam complaints, open rates, and click-through rates.
  • Receiver Throttling: Be aware of receiver throttling, which may limit the number of emails accepted from a single IP address.
  • Dedicated IP Justification: Determine whether a dedicated IP is truly necessary based on sending volume and specific deliverability needs.

What email marketers say
11Marketer opinions

Determining the minimum and maximum sending volumes for dedicated IPs is crucial for maintaining a good sender reputation and ensuring optimal deliverability. Experts and marketers emphasize the importance of a gradual IP warm-up, starting with small volumes and gradually increasing over time. Minimum sending volumes to justify a dedicated IP vary, with suggestions ranging from 5,000 to 50,000 emails per month, or 10,000 emails per week, depending on list quality and engagement. Some sources recommend a minimum of 1 million emails per month for robust segmentation and recovery strategies. Maximum sending volumes also depend on factors like receiver throttling and list composition, with recommendations generally staying within 1-2 million emails per day per IP, potentially stretching to 3-4 million with multiple IPs. Consistency in sending frequency, monitoring engagement metrics, and maintaining list hygiene are critical for success.

Key opinions

  • Gradual Warm-up: A gradual IP warm-up is essential, starting with small volumes of emails to engaged subscribers and increasing over time to establish a positive sending history.
  • Minimum Volume: Minimum sending volumes vary significantly, with some suggesting 5,000 to 50,000 emails per month or 10,000 emails per week to justify a dedicated IP.
  • Maximum Volume: Maximum sending volumes typically range from 1-2 million emails per day per IP, with potential to stretch to 3-4 million with multiple IPs, considering list composition and receiver throttling.
  • Engagement Matters: List quality and engagement significantly impact the minimum volume needed; smaller, highly engaged lists can work with lower volumes.
  • Shared IP Option: For lower sending volumes, a shared IP may be sufficient, especially if sending less than 5,000 emails per week.

Key considerations

  • List Hygiene: Maintaining good list hygiene is vital for sender reputation and deliverability, regardless of sending volume.
  • Consistency: Consistent sending frequency helps maintain a good sender reputation.
  • Engagement Metrics: Monitoring key metrics such as open rates, click-through rates, bounce rates, and spam complaints is essential to assess deliverability.
  • Receiver Throttling: Be aware of potential receiver throttling, which may limit the maximum sending volume to certain domains.
  • Dedicated IP Justification: Assess whether a dedicated IP is truly necessary based on sending volume, list quality, and deliverability needs.
Marketer view

Email marketer from Email Geeks recommends considering list composition for max volume. Some receivers just can’t receive that much mail from 1 IP so they throttle. But if you are only mailing to the big ones, you can send quite a bit. However throughput tends to be better with more IPs (1-2 mil per day for 1 IP, but can possibly stretch to 3-4 mil). For min, they saw a client with maybe 20-30K on a dedicated and they were a better mailer than anyone else. They also saw some clients with the same volume struggling because even a small number of complaints would throw them for a loop.

February 2025 - Email Geeks
Marketer view

Email marketer from Gmass suggests that you may be ready for a dedicated IP address if your email list is large and active and you’re sending out at least 5,000 emails a month. However, you may not be ready for it if your list is small or stagnant, or if your messages are likely to be marked as spam.

May 2021 - Gmass
Marketer view

Email marketer from Reddit explains that the ideal minimum volume for a dedicated IP depends on factors like list quality and engagement. A smaller, highly engaged list might be fine with lower volumes. But it is important that mail should only be sent to engaged users to prevent deliverability problems.

March 2024 - Reddit
Marketer view

Email marketer from Mailjet explains that the volume you send from a dedicated IP should be consistent and aligned with your overall sending frequency. They recommend sending at least a few times a week to maintain a good sender reputation. Monitor your bounce rates and spam complaints to ensure your sending practices are not negatively impacting your deliverability.

July 2022 - Mailjet
Marketer view

Marketer from Email Geeks says that a sender needs to manage their reputation, so there are minimums, maybe 5k per month minimum to give you some room to play with, though more volume is better and they'd never recommend one at that level. If a client really wanted a dedicated IP, then they'd be comfortable recommending at a minimum of 1M per month. That's enough volume to segment and do a recovery strategy down the road in case of future problems. Of course, a sender doesn't automatically need a dedicated IP these days and many send multi-million level volumes per day on shared without issue.

April 2022 - Email Geeks
Marketer view

Email marketer from Email Marketing Forum shares that they aim for at least 10,000 emails per week on a dedicated IP. They believe this volume provides enough data to track performance and make adjustments as needed. They also stress the importance of list hygiene and engagement to maintain a good sender reputation.

June 2023 - Email Marketing Forum
Marketer view

Email marketer from Email on Acid recommends gradually increasing sending volume when using a dedicated IP. They suggest starting with a small segment of highly engaged subscribers and gradually expanding to the rest of your list. They also advise monitoring key metrics like open rates, click-through rates, and bounce rates to ensure your sending practices are not negatively impacting your deliverability.

June 2024 - Email on Acid
Marketer view

Email marketer from Neil Patel explains that when warming up a dedicated IP, you should start small, sending to your most engaged subscribers. Gradually increase the volume, monitoring your deliverability rates and sender reputation closely. This phased approach helps establish a positive sending history.

November 2021 - Neil Patel
Marketer view

Email marketer from Litmus states it is important to get your dedicated IP up to full sending speed by following best practices. It is important to only send mail that people want, by only sending to engaged users. Send frequently and consistently and gradually increase the amount of email that you are sending to build up to your normal sending speed.

March 2021 - Litmus
Marketer view

Email marketer from MailerLite explains that you should start with a small volume of emails when you first start using your dedicated IP address to build trust. After a week you can increase how many you send, making sure you are getting good responses from your recipients. After a while, you can begin sending your normal amount of mail.

December 2022 - MailerLite
Marketer view

Email marketer from Reddit shares that they typically recommend clients send at least 50,000 emails per month to justify a dedicated IP. They also note that it's important to have a consistent sending schedule to maintain a good sender reputation.

September 2023 - Reddit

What the experts say
4Expert opinions

Experts provide varied insights into the optimal sending volumes for dedicated IPs. A key theme is the importance of IP warm-up, balancing volume with engagement and list quality. While one expert suggests a minimum of 100k emails/month for a dedicated IP (though acknowledging lower volumes are possible with caveats), another recommends against dedicated IPs for volumes below 5,000 emails/week, suggesting shared IPs are more suitable. Regarding maximum volume, sending no more than 2 million emails per IP per day is advised to avoid delivery delays, although higher volumes are achievable at the cost of slower delivery.

Key opinions

  • IP Warm-up is Key: A gradual IP warm-up, balancing volume with engagement and list quality, is critical for establishing a positive sender reputation.
  • Volume Threshold for Dedicated IPs: Dedicated IPs may not be suitable for low-volume senders (below 5,000 emails/week); shared IPs might be a better option.
  • Minimum Volume for Dedicated IPs: A minimum of 100k emails/month is suggested by some experts to justify a dedicated IP, though lower volumes are possible with potential deliverability issues.
  • Maximum Daily Volume: Limiting sending to no more than 2 million emails per IP per day is recommended to avoid delivery delays.

Key considerations

  • Engagement and List Quality: Prioritize high engagement rates (opens, clicks) and maintain a clean email list, especially during IP warm-up.
  • Mail Stream Assessment: Carefully assess your mail stream volume and sending frequency to determine whether a dedicated IP is necessary.
  • Deliverability Trade-offs: Consider the trade-offs between sending volume and delivery speed; higher volumes may lead to slower delivery times.
  • Microsoft OLC Annoyances: Be aware that sending lower volumes from a dedicated IP can sometimes lead to issues with Microsoft's Outlook.com (OLC).
Expert view

Expert from Spam Resource explains the key to a good IP warm-up is a balance between volume, engagement, and list quality. Gradually increasing sending volume, while maintaining high engagement rates (opens, clicks) and low complaint rates, is vital for establishing a positive reputation.

August 2024 - Spam Resource
Expert view

Expert from Email Geeks says that ideally, you would send at least 100k/mo to maintain a dedicated IP, however they do 20k/month from a dedicated IP for Spam Resource stuff, which causes some Microsoft OLC annoyances.

October 2023 - Email Geeks
Expert view

Expert from Email Geeks suggests sending no more than 2 million emails per IP per day. You can send more, and they've seen people send 3-8 million well enough, but most people don't want the big send to actually take 20 hours to deliver.

August 2022 - Email Geeks
Expert view

Expert from Word to the Wise shares that volume depends on your mail stream. It makes no sense to get a dedicated IP and send 500 emails/week. If you're sending less than 5,000 emails/week a shared IP is fine.

March 2024 - Word to the Wise

What the documentation says
4Technical articles

Email service providers emphasize the importance of a gradual IP warm-up process for dedicated IPs to establish a positive sending reputation with ISPs. This involves starting with a small volume of emails (a few hundred to a few thousand per day) and gradually increasing it over several weeks. Maintaining good IP reputation is crucial, which can be monitored through tools like Google Postmaster Tools and sender score. Key to this process is consistently monitoring engagement metrics (open rates, click-through rates, bounce rates, and spam complaints) and only sending to engaged users initially. Addressing issues like high bounce or spam complaint rates is also critical for maintaining deliverability.

Key findings

  • Gradual IP Warm-up: A gradual IP warm-up is universally recommended, starting with a small number of emails per day and increasing over weeks.
  • Importance of Reputation: Maintaining a good IP reputation is essential for email deliverability.
  • Monitor Key Metrics: Monitoring engagement metrics (opens, clicks, bounces, complaints) is vital for adjusting the warm-up process and identifying potential issues.

Key considerations

  • Engagement is Key: Only send to engaged users during the initial warm-up phase to build a positive reputation.
  • Consistent Sending: Maintain consistent sending patterns to establish a reliable sender reputation.
  • Address Issues Promptly: Proactively address any issues like high bounce rates or spam complaints to prevent negative impacts on deliverability.
  • Follow Guidelines: Adhere to sender guidelines provided by email service providers like Google.
Technical article

Documentation from Google Postmaster Tools explains that maintaining a good IP reputation is essential for delivering emails to Gmail users. They advise monitoring your IP reputation in Postmaster Tools and taking steps to address any issues, such as high spam complaint rates. They also emphasize the importance of following Google's sender guidelines to ensure your emails are delivered successfully.

June 2022 - Google
Technical article

Documentation from SendGrid recommends a gradual IP warm-up, suggesting starting with a few hundred emails per day and slowly increasing the volume over several weeks. They emphasize the importance of consistent sending and monitoring engagement metrics to adjust the warm-up schedule accordingly. It is important to only mail engaged users at the start.

November 2021 - SendGrid
Technical article

Documentation from SparkPost explains that maintaining a good IP reputation is crucial for successful email delivery. They advise monitoring your sender score and taking steps to address any issues that may arise, such as high bounce rates or spam complaints. They state that volumes should be increased gradually.

September 2021 - SparkPost
Technical article

Documentation from Amazon SES explains the importance of IP warm-up for dedicated IPs. They state that new IPs have no sending history, so gradually increasing sending volumes helps build a positive reputation with ISPs. They provide specific guidelines for daily sending limits during the warm-up process, typically starting with a few thousand emails and increasing over time.

May 2024 - Amazon SES

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